#1543CA#1543CA

#1543CA is a mid, highly saturated blue. Relative luminance 0.084; OKLCH L 45.3% C 0.214 H 264.4°. Best body text is #FFFFFF at 7.81:1 contrast (WCAG AA passes).

Color values

HEX	#1543CA
RGB	rgb(21, 67, 202)
HSL	hsl(225, 81%, 44%)
HSV	hsv(225, 90%, 79%)
CMYK	cmyk(89.6%, 66.8%, 0%, 20.8%)
CIE-LAB	lab(34.88, 38.15, -73.29)
CIE-LCH	lch(34.88, 82.63, 297.50°)
OKLab	oklab(45.33% -0.021 -0.2126)
OKLCH	oklch(45.33% 0.214 264.4)
XYZ	xyz(12.9733, 8.4363, 56.8103)
Luminance	0.0844 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1543CA #CA9C15

analogous

#159DCA #1543CA #4115CA

triadic

#1543CA #CA1543 #43CA15

tetradic

#1543CA #CA159D #CA9C15 #15CA41

square

#1543CA #CA159D #CA9C15 #15CA41

split-complementary

#1543CA #CA4115 #9DCA15

monochromatic

#091E5B #0F3193 #1543CA #3261EA #6A8CEF

Accessibility & contrast

On white

7.81

#1543CA on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.69

#1543CA on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1543CA

7.81:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1543CA	#FFFFFF	#000000	##FFFFFF
##1543CA	1.00	7.81	2.69	7.81
#FFFFFF	7.81	1.00	21.00	1.00
#000000	2.69	21.00	1.00	21.00
##FFFFFF	7.81	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005BCE

Deuteranopia (green-blind)

#004AC8

Tritanopia (blue-blind)

#006881

Achromatopsia (no color)

#525252

Design tokens & code

CSS

--color: #1543ca;
/* rgb */ color: rgb(21, 67, 202);
/* oklch */ color: oklch(45.3% 0.214 264.4);

Tailwind

colors: {
  custom: {
    50: '#7a77db',
    500: '#1543ca',
    950: '#000000',
  },
}

SCSS

$custom: #1543ca;
$custom-light: #7a77db;
$custom-dark: #000000;

JSON

{
  "hex": "#1543ca",
  "rgb": {
    "r": 21,
    "g": 67,
    "b": 202
  },
  "hsl": {
    "h": 224.751,
    "s": 81.166,
    "l": 43.725
  },
  "oklch": {
    "l": 0.45331,
    "c": 0.21359,
    "h": 264.4
  },
  "luminance": 0.08438
}

Semantic roles & 50–950 ramp

primary

#1543CA

secondary

#D5B966

accent

#C530F8

background

#F8F7FD

surface

#EFEDFB

border

#CAC8D4

text

#0B0815

muted

#7C7B83

Preview Lab

Preview with #1543CA

Body copy rendered with the generated semantic roles for this colour.

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